For his role in Dallas Buyers Club,McConaughey gave himself 4 months to lose weight. He got down to 135 pounds.
Once lean, he found his mind sharper and needed 3 less hours of sleep per night.
While he was losing weight he did the cooking for his family.
One of the things Matthew is most proud of is the many passports he has filled up. In his opinion, it's the best proof of the culture he obtained during his travels.
McConaughey had access to Ron Woodroof’s personal diaries to help develop his character.